My Wii's been bricked since around July, and I've been trying different methods from a lot of sites on how to unBrick it. All of them don't seem to work. I have the Banner Brick type where it shows "Wii system files are corrupt" after I press A on the Health and Safety screen. I don't have Homebrew Channel, or BootMii. This is a straight-up oldschool WiiKey modchip. I can access the black screen that shows "4.0 (USA)" but that's about it. I don't know what I can do to unbrick my Wii.